Universe Sandbox Alternatives

Real-time 3D visualization of space

Stellarium is a free open source planetarium for your computer.

Space Engine is a realistic virtual Universe you can explore on your computer.

Build spacecraft, fly them, and try to help the Kerbals to fulfill their ultimate mission of conquering space.

Player-created empires, player-driven markets, and endless ways to embark on your personal sci-fi adventure.

3D model of the Solar System and night sky in real time

KStars is a Desktop Planetarium for KDE.

OpenSpace is open source interactive data visualization software designed to visualize the entire known universe and portray our ongoing efforts to investigate the cosmos.

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Cosmonium is a 3D astronomy and space exploration program.

Star Conflict is a free MMO action game and space simulator that was introduced in 2012.

Mitaka is software for visualizing the known Universe with up-to-date observational data and...

Ace Online is a distinctive 3D MMO that places you in the pilot seat of your personal fighter ship (called a Gear).